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Last modified by Mengting Qiu on 2025/06/04 18:42
From version 57.1
edited by Xiaoling
on 2022/05/24 10:12
Change comment: Uploaded new attachment "1653358355238-883.png", version {1}
To version 36.1
edited by Xiaoling
on 2022/05/24 09:46
Change comment: Uploaded new attachment "image-20220524094641-12.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -1028,69 +1028,77 @@
1028 1028  
1029 1029  range: aa bb cc:0 to 16777215,  (unit:second)
1030 1030  
1031 -== 3.5 Integrate with Mydevice ==
1032 1032  
1032 +
1033 +
1034 +1.
1035 +11. Integrate with Mydevice
1036 +
1033 1033  Mydevices provides a human friendly interface to show the sensor data, once we have data in TTN, we can use Mydevices to connect to TTN and see the data in Mydevices. Below are the steps:
1034 1034  
1035 -**Step 1**: Be sure that your device is programmed and properly connected to the network at this time.
1036 1036  
1037 -**Step 2**: To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1040 +Step 1: Be sure that your device is programmed and properly connected to the network at this time.
1038 1038  
1039 -[[image:1653356737703-362.png||height="232" width="732"]]
1042 +Step 2: To configure the Application to forward data to Mydevices you will need to add integration. To add the Mydevices integration, perform the following steps:
1040 1040  
1041 -[[image:image-20220524094641-11.png||height="390" width="723"]]
1042 1042  
1045 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image010.png]]
1043 1043  
1044 -[[image:image-20220524094641-12.png||height="402" width="718"]]
1045 1045  
1046 -**Step **3: Create an account or log in Mydevices.
1048 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image011.png]]
1047 1047  
1048 -**Step 4**: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.(% style="display:none" %)
1049 1049  
1051 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image012.png]]
1052 +
1053 +
1054 +
1055 +Step 3: Create an account or log in Mydevices.
1056 +
1057 +Step 4: Search LT-22222-L(for both LT-22222-L / LT-33222-L) and add DevEUI.
1058 +
1050 1050  Search under The things network
1051 1051  
1052 -[[image:1653356838789-523.png||height="337" width="740"]]
1061 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image013.png]]
1053 1053  
1063 +
1054 1054  After added, the sensor data arrive TTN, it will also arrive and show in Mydevices.
1055 1055  
1066 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
1056 1056  
1057 -[[image:image-20220524094909-1.png||height="335" width="729"]]
1058 1058  
1059 -[[image:image-20220524094909-2.png||height="337" width="729"]]
1069 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
1060 1060  
1061 -[[image:image-20220524094909-3.png||height="338" width="727"]]
1062 1062  
1063 -[[image:image-20220524094909-4.png||height="339" width="728"]](% style="display:none" %)
1072 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
1064 1064  
1065 -[[image:image-20220524094909-5.png||height="341" width="734"]]
1066 1066  
1075 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
1067 1067  
1068 1068  
1078 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
1069 1069  
1070 1070  
1071 -== 3.6 Interface Detail ==
1081 +1.
1082 +11. Interface Detail
1083 +111. Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active )
1072 1072  
1073 -=== 3.6.1 Digital Input Port: DI1/DI2 /DI3 ( For LT-33222-L, low active ) ===
1074 -
1075 1075  Support NPN Type sensor
1076 1076  
1077 -[[image:1653356991268-289.png]]
1087 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
1078 1078  
1079 -=== 3.6.2 Digital Input Port: DI1/DI2 ( For LT-22222-L) ===
1080 1080  
1081 -(((
1090 +
1091 +1.
1092 +11.
1093 +111. Digital Input Port: DI1/DI2 ( For LT-22222-L)
1094 +
1082 1082  The DI port of LT-22222-L can support NPN or PNP output sensor.
1083 -)))
1084 1084  
1085 -(((
1086 1086  Internal circuit as below, the NEC2501 is a photocoupler, the Active current (from NEC2501 pin 1 to pin 2 is 1ma and the max current is 50mA. When there is active current pass NEC2501 pin1 to pin2. The DI will be active high
1087 -)))
1088 1088  
1089 -[[image:1653357170703-587.png]]
1099 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
1090 1090  
1091 -(((
1092 1092  When use need to connect a device to the DI port, both DI1+ and DI1- must be connected.
1093 -)))
1094 1094  
1095 1095  
1096 1096  **Example1**: Connect to a Low active sensor.
... ... @@ -1100,11 +1100,11 @@
1100 1100  * Connect sensor’s output to DI1-
1101 1101  * Connect sensor’s VCC to DI1+.
1102 1102  
1103 -So when sensor active, the current between NEC2501 pin1 and pin2 is： ​​
1111 +So when sensor active, the current between NEC2501 pin1 and pin2 is:
1104 1104  
1105 - //IF// = DI1+ / 1K.
1113 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1106 1106  
1107 -If DI1+ = 12v, the //IF// = 12mA , So the LT-22222-L will be able to detect this active signal.
1115 +If DI1+ = 12v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 12mA , So the LT-22222-L will be able to detect this active signal.
1108 1108  
1109 1109  
1110 1110  **Example2**: Connect to a High active sensor.
... ... @@ -1116,12 +1116,12 @@
1116 1116  
1117 1117  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1118 1118  
1119 -[[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]** [[image:image-20220524095628-8.png]]= DI1+ / 1K.**
1127 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 1K.
1120 1120  
1121 -If **DI1+ = 24v**, the [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]**[[image:image-20220524095628-8.png]]** = 24mA , So the LT-22222-L will be able to detect this high active signal.
1129 +If DI1+ = 24v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 24mA , So the LT-22222-L will be able to detect this high active signal.
1122 1122  
1123 1123  
1124 -**Example3**: Connect to a 220v high active sensor.
1132 +**Example3**: Connect to a 220v high active sensor.公司测试一下
1125 1125  
1126 1126  Assume user want to monitor an active signal higher than 220v, to make sure not burn the photocoupler  
1127 1127  
... ... @@ -1130,24 +1130,34 @@
1130 1130  
1131 1131  So when sensor active, the current between NEC2501 pin1 and pin2 is:
1132 1132  
1133 - [[image:/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LT-22222-L/WebHome/image-20220524095628-8.png]]**[[image:image-20220524095628-8.png]] = DI1+ / 51K.**
1141 + //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]] = DI1+ / 51K.
1134 1134  
1135 -If sensor output is 220v, the (% id="cke_bm_243359S" style="display:none" %) [[image:image-20220524095628-8.png]](%%) = DI1+ / 51K.  = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1143 +If sensor output is 220v, the //IF//[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] = 4.3mA , So the LT-22222-L will be able to detect this high active signal safely.
1136 1136  
1137 -=== 3.6.3 Digital Output Port: DO1/DO2 /DO3 ===
1138 1138  
1146 +1.
1147 +11.
1148 +111. Digital Output Port: DO1/DO2 /DO3
1149 +
1139 1139  NPN output: GND or Float. Max voltage can apply to output pin is 36v.
1140 1140  
1141 -[[image:1653357531600-905.png]]
1152 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1142 1142  
1143 -=== 3.6.4 Analog Input Interface ===
1144 1144  
1155 +
1156 +
1157 +1.
1158 +11.
1159 +111. Analog Input Interface
1160 +
1145 1145  The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the current pass the Load. The formula is:
1146 1146  
1147 -**AC2 = (IN2 voltage )/12**
1163 +AC2 = (IN2 voltage )/12
1148 1148  
1149 -[[image:1653357592296-182.png]]
1165 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
1150 1150  
1167 +
1168 +
1151 1151  Example to connect a 4~~20mA sensor
1152 1152  
1153 1153  We take the wind speed sensor as an example for reference only.
... ... @@ -1163,30 +1163,67 @@
1163 1163  
1164 1164  Connection diagram:
1165 1165  
1166 -[[image:1653357640609-758.png]]
1184 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.jpg]]
1167 1167  
1168 -[[image:1653357648330-671.png||height="155" width="733"]]
1186 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1169 1169  
1170 -=== 3.6.5 Relay Output ===
1171 1171  
1172 -(((
1189 +
1190 +1.
1191 +11.
1192 +111. Relay Output
1193 +
1173 1173  The LT serial controller has two relay interfaces; each interface uses two pins of the screw terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as below:
1174 -)))
1175 1175  
1196 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1176 1176  
1177 -[[image:image-20220524100215-9.png]]
1178 1178  
1179 -[[image:image-20220524100215-10.png||height="382" width="723"]]
1199 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1180 1180  
1181 1181  
1182 -== 3.7 LEDs Indicators ==
1183 1183  
1184 -[[image:image-20220524100748-11.png]]
1185 1185  
1186 -= 4. Use AT Command =
1187 1187  
1188 -== 4.1 Access AT Command ==
1205 +1.
1206 +11. LEDs Indicators
1189 1189  
1208 +(% border="1" style="background-color:#f7faff" %)
1209 +|**LEDs**|**Feature**
1210 +|**PWR**|Always on if there is power
1211 +|**SYS**|After device is powered on, the SYS will **fast blink in GREEN** for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be **on GREEN for 5 seconds. **SYS will **blink Blue** on every upload and **blink Green** once receive a downlink message.
1212 +|**TX**|(((
1213 +Device boot: TX blinks 5 times.
1214 +
1215 +Successful join network: TX ON for 5 seconds.
1216 +
1217 +Transmit a LoRa packet: TX blinks once
1218 +)))
1219 +|**RX**|RX blinks once when receive a packet.
1220 +|**DO1**|
1221 +|**DO2**|
1222 +|**DO3**|
1223 +|**DI2**|(((
1224 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1225 +
1226 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1227 +)))
1228 +|**DI2**|(((
1229 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1230 +
1231 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1232 +)))
1233 +|**DI3**|For LT-33222-L ONLY: ON when DI3 is low, LOW when DI3 is high
1234 +|**DI2**|(((
1235 +For LT-22222-L: ON when DI2 is high, LOW when DI2 is low
1236 +
1237 +For LT-33222-L: ON when DI2 is low, LOW when DI2 is high
1238 +)))
1239 +|**RO1**|
1240 +|**RO2**|
1241 +
1242 +1. Use AT Command
1243 +11. Access AT Command
1244 +
1190 1190  LT supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to LT for using AT command, as below.
1191 1191  
1192 1192  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
... ... @@ -1293,7 +1293,7 @@
1293 1293  
1294 1294  
1295 1295  
1296 -1.
1351 +1.
1297 1297  11. Common AT Command Sequence
1298 1298  111. Multi-channel ABP mode (Use with SX1301/LG308)
1299 1299  
... ... @@ -1316,8 +1316,8 @@
1316 1316  
1317 1317  ATZ
1318 1318  
1319 -1.
1320 -11.
1374 +1.
1375 +11.
1321 1321  111. Single-channel ABP mode (Use with LG01/LG02)
1322 1322  
1323 1323  123456   Enter Password to have AT access.
... ... @@ -1357,7 +1357,7 @@
1357 1357  
1358 1358  
1359 1359  1.
1360 -11.
1415 +11.
1361 1361  111. Change to Class A
1362 1362  
1363 1363  If sensor JOINED
... ... @@ -1372,7 +1372,7 @@
1372 1372  
1373 1373  1. FAQ
1374 1374  
1375 -1.
1430 +1.
1376 1376  11. How to upgrade the image?
1377 1377  
1378 1378  The LT LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to LT to:
... ... @@ -1431,7 +1431,7 @@
1431 1431  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1432 1432  
1433 1433  
1434 -1.
1489 +1.
1435 1435  11. How to set up LT to work with Single Channel Gateway such as LG01/LG02?
1436 1436  
1437 1437  In this case, users need to set LT-33222-L to work in ABP mode & transmit in only one frequency.
... ... @@ -1490,7 +1490,7 @@
1490 1490  [[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#How_it_work]]
1491 1491  
1492 1492  
1493 -1.
1548 +1.
1494 1494  11. Have trouble to upload image.
1495 1495  
1496 1496  See this link for trouble shooting:
... ... @@ -1498,7 +1498,7 @@
1498 1498  [[http:~~/~~/wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting>>url:http://wiki.dragino.com/index.php?title=Firmware_Upgrade_Trouble_Shooting#UART_upgrade_trouble_shooting]]
1499 1499  
1500 1500  
1501 -1.
1556 +1.
1502 1502  11. Why I can’t join TTN in US915 /AU915 bands?
1503 1503  
1504 1504  It might be about the channels mapping. Please see this link for detail:
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